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1210311032313 = 310717921063907
BaseRepresentation
bin10001100111001100001…
…010001011110111111001
311021201000122201211020010
4101213030022023313321
5124312204111013223
62324001553452133
7153304431013515
oct21471412136771
94251018654203
101210311032313
114273210302a9
12176696871049
138a193866666
1442817ad3145
152173a036393
hex119cc28bdf9

1210311032313 has 16 divisors (see below), whose sum is σ = 1637929486080. Its totient is φ = 794867556816.

The previous prime is 1210311032311. The next prime is 1210311032339. The reversal of 1210311032313 is 3132301130121.

It is a happy number.

It is not a de Polignac number, because 1210311032313 - 21 = 1210311032311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1210311032313.

It is not an unprimeable number, because it can be changed into a prime (1210311032311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10474495 + ... + 10589412.

It is an arithmetic number, because the mean of its divisors is an integer number (102370592880).

Almost surely, 21210311032313 is an apocalyptic number.

It is an amenable number.

1210311032313 is a deficient number, since it is larger than the sum of its proper divisors (427618453767).

1210311032313 is a wasteful number, since it uses less digits than its factorization.

1210311032313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21064196.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1210311032313 its reverse (3132301130121), we get a palindrome (4342612162434).

The spelling of 1210311032313 in words is "one trillion, two hundred ten billion, three hundred eleven million, thirty-two thousand, three hundred thirteen".

Divisors: 1 3 107 179 321 537 19153 57459 21063907 63191721 2253838049 3770439353 6761514147 11311318059 403437010771 1210311032313